CN215202994U - Demoulding mould - Google Patents

Abstract

The utility model relates to a drawing of patterns mould belongs to plastic mould technical field. The demolding mold comprises an inclined pin, an ejector pin and a mold core, wherein the ejector pin is transversely arranged in the inclined pin, and the spherical surface of the ejector pin protrudes out of the inclined surface of the inclined pin; a groove is formed in one side of the mold core opposite to the inclined plane of the inclined pin, and a straight body surface and an inclined plane are arranged in the groove along the mold opening direction of the mold; and under the die assembly state, the spherical surface of the thimble is jacked to the bottom of the straight body surface. The utility model discloses a straight body face, the inclined plane that set up on thimble and the mould benevolence recess in with the taper pin mutually support, make the taper pin progressively separate with T type plastic product along the in-process of inclination direction motion, and the horizontal thimble of establishing in the taper pin has avoided leading to the product to glue with the taper pin because of the complicacy of T type plastic product mutually, and mould simple structure, and the cost is low, occupation space is little.

Description

Demoulding mould

Technical Field

The utility model relates to a drawing of patterns mould belongs to injecting glue mould technical field.

Background

With the continuous development of mold technology, plastics are widely applied to products with different diameters and different strengths by virtue of excellent properties of the plastics. At present, most of demoulding moulds are arranged to be demouldable in the mould opening direction, and for simple plastic products, the structure of the transverse demoulding mould is simpler, but due to the rapid development of the plastic industry, more and more complex plastic products are produced, more and more corresponding transverse complex demoulding mould structures are produced, and particularly, the transverse demoulding problem of T-shaped products is caused, for example, a mould mechanism is ejected on a sliding block, the structure of the general mould is more complex, the cost is high, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a drawing of patterns mould, solve among the prior art technical problem that horizontal demoulding mechanism structure is comparatively complicated, with high costs, occupation space is big.

In order to achieve the purpose, the utility model provides a demoulding mould, which comprises an inclined pin, a thimble and a mould core, wherein the thimble is transversely arranged in the inclined pin, and the spherical surface of the thimble protrudes out of the inclined surface of the inclined pin; a groove is formed in one side of the mold core opposite to the inclined plane of the inclined pin, and a straight body surface and an inclined plane are arranged in the groove along the mold opening direction of the mold; and under the die assembly state, the spherical surface of the thimble is jacked to the bottom of the straight body surface.

Furthermore, the thimble is equipped with one or more, the straight body face and the inclined plane crisscross setting of laying in the recess.

Furthermore, a fixing plate is arranged on one side, close to the mold core, of the taper pin, the outer side face of the fixing plate is obliquely arranged along the inclined face of the taper pin, and the spherical surface of the ejector pin penetrates through the fixing plate to be ejected to the straight body face or the inclined face.

Furthermore, a positioning step is arranged on one side, connected with the inclined pin, of the fixing plate, a protrusion matched with the positioning step is arranged on the ejector pin, and the protrusion abuts against the positioning step and is used for stroke positioning of the ejector pin.

Furthermore, fixed grooves are further formed in the two ends of the fixed plate, and the fixed plate is fixed to the inclined pins through pins penetrating through the fixed grooves.

Furthermore, an avoiding interval is arranged in the taper pin, a spring is arranged in the avoiding interval, the protrusion of the ejector pin can slide in the avoiding interval, and the ejector pin can be always kept protruding out of the fixing plate under the elastic force action of the spring.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

the straight body surface and the inclined plane which are arranged on the ejector pin in the angle pin and the mould core groove are matched with each other, so that the angle pin can be gradually separated from the T-shaped plastic product in the process of moving along the inclination direction, and the transverse ejector pin arranged in the angle pin avoids the problem that the product is adhered to the angle pin due to the complexity of the T-shaped plastic product, and the mould has the advantages of simple structure, low cost and small occupied space.

Each thimble is arranged to correspond to a straight body surface and an inclined surface, and during demoulding, the thimbles move upwards along with the inclined pins, and the thimbles work simultaneously, so that the demoulding effect of the T-shaped plastic product is enhanced.

The fixing plate is connected one side with the taper pin and is provided with a positioning step, the ejector pin is provided with a protrusion matched with the positioning step, the positioning step and the protrusion are matched with the straight body surface and the inclined surface, the ejector pin can be subjected to stroke positioning when the taper pin moves along the inclination direction, so that the movement of the ejector pin has consistency, and the demolding effect of a T-shaped plastic product is further enhanced.

Set up the spring in dodging the interval, the directional interval of dodging of spring one end, the directional arch of the other end provides power for the motion of thimble, simple structure, and the cost is lower.

Drawings

Fig. 1 is a schematic structural view of a demolding mold in a mold closing state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure of the ejector pin, the straight body surface and the inclined surface of FIG. 1 in a mold closing state;

FIG. 3 is a schematic view of the structure of the groove in FIG. 1

Fig. 4 is a schematic structural diagram of a demolding die provided in an embodiment of the present invention in a demolding state;

fig. 5 is a partially enlarged structural diagram of the thimble, the straight surface and the inclined surface in fig. 4 in a demolding state.

In the figure: 1. a taper pin; 2. a mold core; 3. a pin; 4. a fixing plate; 5. a thimble; 6. a straight body surface; 7. a bevel; 8. the spherical surface of the thimble; 9. positioning a step; 10. fixing the groove; 11. a protrusion; 12. an avoidance interval; 13. a spring; 14. and (4) a groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in the attached drawings, the demolding mold comprises an inclined pin 1, ejector pins 5 and a mold core 2, wherein the ejector pins 5 are transversely arranged in the inclined pin 1, a plurality of ejector pins 5 are arranged, and the spherical surfaces 8 of the ejector pins protrude out of the inclined surface of the inclined pin 1; a groove 14 is formed in one side of the die core 2 opposite to the inclined surface of the inclined pin 1, a straight body surface 6 and an inclined surface 7 are arranged in the groove 14 along the die opening direction of the die, and the straight body surface 6 and the inclined surface 7 are arranged in a staggered mode; the ejector pins 5 are arranged opposite to the straight body surface 6 and the inclined surface 7, so that one ejector pin 5 corresponds to the straight body surface 6 and the inclined surface 7, and the ejector pin 5 is ejected to the bottom of the straight body surface 6 in a die assembly state; along with the simultaneous operation of a plurality of thimbles 5 in the oblique upward motion's of taper pin in-process, strengthened T type plastic products's drawing of patterns effect. During demoulding, the thimble 5 moves upwards along the bottom of the straight body surface 6, and the horizontal position of the thimble 5 is not changed due to the jacking action of the straight body surface 6, so that a support product is separated from the taper pin; in the process of moving upwards along with the inclined pin 1, the ejector pin 5 gradually produces transverse displacement with the inclined pin 1, so that the T-shaped plastic product is slowly separated from the inclined pin 1, the phenomenon that the product is adhered to the inclined pin 1 due to the complexity of the T-shaped plastic product is avoided, and the die is simple in structure, low in cost and small in occupied space.

In one embodiment, a fixing plate 4 is arranged on one side, close to the mold core 2, of the taper pin 1, the outer side surface of the fixing plate 4 is obliquely arranged along the inclined surface of the taper pin 1, fixing grooves 10 are respectively arranged at two ends of the fixing plate 4, pins 3 are arranged on the fixing grooves 10, the fixing plate 4 is fixed on the taper pin 1 through the pins 3, and the thimble spherical surface 8 transversely penetrates through the fixing plate 4 to be ejected to the straight body surface 6 or the inclined surface 7.

The utility model provides an embodiment, fixed plate 4 with oblique 1 connection one side of round pin is equipped with location step 9, be equipped with on thimble 5 with the protruding 11 of location step 9 looks adaptation, protruding 11 is located 5 front ends of thimble and each protruding 11 corresponds a location step 9, protruding 11 support lean on in on the location step 9 for carry out the stroke location to thimble 5, make the motion of thimble 5 have the uniformity, further strengthened the drawing of patterns effect of T type plastic product. Specifically, in a mold closing state, the protrusion 11 abuts against the positioning step 9, the ejector pin 5 starts to move upwards along with the upward movement process of the angle pin 1 along the inclination direction, the ejector pin 5 keeps unchanged in the transverse position and generates transverse displacement with the angle pin 1 under the action of the straight body surface 6, the transverse distance between the protrusion 11 and the positioning step 9 is larger and larger at the moment, and when the spherical surface 8 of the ejector pin rises to the top point of the straight body surface 6, the transverse distance between the protrusion 11 and the positioning step 9 is maximum; with the continuous upward movement of the taper pin 1 along the slope direction, the thimble spherical surface 8 moves to point to the slope 7, at this time, the transverse distance between the protrusion 11 and the positioning step 9 becomes smaller and smaller, and the movement is finished when the protrusion 11 and the positioning step 9 are abutted again.

According to one embodiment, an avoidance area 12 is arranged in the taper pin 1, a spring 13 is arranged in the avoidance area 12, the spring 13 is located on the left side of the protrusion 11, one end of the spring points to the avoidance area 12, the other end of the spring points to the protrusion 11, power is provided for movement of the ejector pin 5, the structure is simple, and the cost is low; the protrusion 11 of the thimble 5 can slide left and right in the avoiding section 12, and the pointer 5 protrudes from the fixing plate 4 all the time to the straight body surface 6 or the inclined surface 7 under the elastic force action of the spring.

The specific operation flow of the demolding die is as follows:

during demoulding, the angle pin 1 is ejected upwards and transversely along the axis direction, the thimble spherical surface 8 is displaced upwards along the bottom of the straight body surface 6, and the thimble 5 ejects a product under the action of the straight body surface 6, so that a T-shaped plastic product cannot stick to the angle pin 6;

the angle pin 1 continues to be obliquely ejected out along the axis direction, when the thimble spherical surface 8 is displaced to the inclined surface 7, the thimble 5 is gradually separated from the T-shaped plastic product until the protrusion 11 at the front end of the thimble 5 is superposed with the positioning step 9, and at the moment, the thimble 5 is completely separated from the T-shaped plastic mould.

And the angle pin 1 continues to be obliquely ejected out along the axis direction until the operation is finished after the T-shaped plastic mould is taken out.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (6)

1. A demoulding mould is characterized by comprising an inclined pin (1), ejector pins (5) and a mould core (2), wherein the ejector pins are transversely distributed in the inclined pin, and the spherical surfaces (8) of the ejector pins protrude out of the inclined surfaces of the inclined pin; a groove (14) is formed in one side of the mold core, which is opposite to the inclined surface of the inclined pin, and a straight body surface (6) and an inclined surface (7) are arranged in the groove along the mold opening direction of the mold; and under the die assembly state, the spherical surface of the thimble is jacked to the bottom of the straight body surface.

2. The demolding die as claimed in claim 1, wherein said ejector pins are provided in plural, and the straight faces and the inclined faces arranged in said grooves are arranged alternately.

3. The demolding mold according to claim 1, wherein a fixing plate (4) is disposed on one side of the taper pin adjacent to the mold core, an outer side surface of the fixing plate is disposed along the taper surface of the taper pin in an inclined manner, and the spherical surface of the ejector pin penetrates through the fixing plate and is ejected toward the straight surface or the inclined surface.

4. The demolding die according to claim 3, wherein a positioning step (9) is arranged on one side of the fixing plate connected with the angle pin, a protrusion (11) matched with the positioning step is arranged on the ejector pin, and the protrusion abuts against the positioning step and is used for stroke positioning of the ejector pin.

5. A demolding die according to claim 3, characterized in that the fixing plate is further provided with fixing grooves (10) at both ends thereof, and the fixing plate is fixed to the oblique pin by means of pins (3) penetrating the fixing grooves.

6. The demolding die according to claim 4, wherein an avoiding section (12) is arranged in the taper pin, a spring (13) is arranged in the avoiding section, the protrusion of the ejector pin can slide in the avoiding section, and the ejector pin can be always kept protruding out of the fixing plate under the elastic force of the spring.

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